Murong Jun in the context of "Murong Huang"

Yan, known in historiography as the Former Yan (Chinese: 前燕; pinyin: Qián Yān; 337–370), was a dynastic state of China ruled by the Murong clan of the Xianbei during the Sixteen Kingdoms period. From Liaoning, the Former Yan later conquered and ruled over Hebei, Shaanxi, Shandong and Henan at its peak. They were notably the first of several Xianbei states to have establish their rule over the Central Plains. The prefix of "Former" is used in historiography to distinguish them from the other Yan states that came after them such as Later Yan.

Initially, Murong Huang and his son Murong Jun claimed the Eastern Jin-created title "Prince of Yan", but subsequently, in 352, after seizing most of the former Later Zhao territory, Murong Jun would declare himself emperor, and after that point, the rulers of the Former Yan declared themselves "emperors". The Yan changed their capital from time to time, with their last capital, Ye being the most prestigious due to its status as a major population hub.

Yan, known in historiography as the Southern Yan (Chinese: 南燕; pinyin: Nán Yān; 398–410), was a dynastic state of China ruled by the Murong clan of the Xianbei during the era of Sixteen Kingdoms. Its founder Murong De (Emperor Xianwu) was a son of Murong Huang (Emperor Wenming) and brother of Murong Jun (Emperor Jingzhao) and Murong Chui (Emperor Chengwu), and therefore was an imperial prince of both the Former Yan and Later Yan dynasties.

All rulers of the Southern Yan declared themselves "emperors". Initially ruling from Huatai (滑台, in modern Anyang, Henan) in northern Henan, they later moved to Shandong and established Guanggu (廣固, in modern Qingzhou, Shandong) as their capital. As one of many Yan states from the period, they were given the prefix of "Southern" by historiographers to distinguish them with the others as they were based south of the Yellow River.